NEET Sample Paper NEET Sample Test Paper-25

  • question_answer
    Water rises to height 'h' in capillary tube. If the length of capillary tube above the surface of water is made less than 'A', then

    A)  water does not rise at all.

    B)  water rises up to the tip of capillary tube and then starts overflowing like a fountain.

    C)  water rises up to the top of capillary tube and stays there without overflowing.

    D)  water rises up to a point a little below the top and stays there.

    Correct Answer: C

    Solution :

    Condition of insufficient length of capillary tube \[h\propto \frac{1}{r}.\]


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